[ADRIANFR]

This is clearly demoware, good enough to impress the general public. But once you go from "Draw a red circle" to "Draw a red circle overlapped one third with a blue square with white dots over the lower left corner" that would be progress. And then I wonder if this will also work: "Paint a white-dotted blue square that intersects over a third of a red circle in the lower-left corner. Or will it give a "compile error"

Why not just create a DSL (e.g. in Scala) with a simple standardized NL-like syntax that can give meaningful "compile errors". There is no need to impress the general public.